Hadith 4:555

Narrated Abu Said:

Allah's Apostle said, "Noah and his nation will come (on the Day of
Resurrection and Allah will ask (Noah), "Did you convey (the
Message)?' He will reply, 'Yes, O my Lord!' Then Allah will ask Noah's
nation, 'Did Noah convey My Message to you?' They will reply, 'No, no
prophet came to us.' Then Allah will ask Noah, 'Who will stand a
witness for you?' He will reply, 'Muhammad and his followers (will
stand witness for me).' So, I and my followers will stand as witnesses
for him (that he conveyed Allah's Message)." That is, (the
interpretation) of the Statement of Allah: "Thus we have made you a
just and the best nation that you might be witnesses Over mankind .."
(2.143)